The chat widget — Add a Widget view
The quickest route is + New → Run a help desk, which sets up the bubble along with an address and the columns a desk needs. To add one to a table that is already a queue, open the table and click + View → Chat widget. RowFold mints the token and maps the obvious fields — the visitor's email, their name, and the opening message — but only where the answer is unambiguous: one Email field on the table means one candidate, and several means it maps nothing and leaves the choice to you in the designer.
The view is created switched off. Its designer carries the snippet to paste on your site, what the visitor sees, which fields a conversation lands in, who gets told, and where the widget is allowed to run.